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Map of the main island of the archipelago of Åland. The numbers on the map express the locations of the study-sites. For numbering, check the lefthand column in Table 1.
Source publication
Semiaquatic flies (Diptera, Nematocera: Limoniidae, Tipulidae, Pediciidae, Cylindroto-midae, Ptychopteridae, Psychodidae and Dixidae) of wetlands in the Åland Islands were collected from 19 sites with Malaise traps. Sites included open mires, wooded mires, rich fens, Baltic shore meadows, ditches and a grove. A total of 104 species were found of wh...
Contexts in source publication
Context 1
... adult insect material was collected in this study. The material was collected mainly by using Malaise traps (height 140, length 110, width 70 cm). The Malaise trap is a passive, non-attractive trap model which is an efficient way to collect low flying insects. The traps were set on 19 research sites (Table 1, Fig. 1). One trap was set on each of Table 1. 17 sites, and two traps on each of two sites. The traps were set on the study sites at the end of April and they were removed at the end of September. The exception was the grove of Prästgårdsnäset, where the traps were present only from April to June due to pasturage of the area. Other traps were ...
Context 2
... refer to study sites from which each species have been found. They relate to Table 1 and Figure 1. The site numbers have been embold- ened if the number of specimens of the species from the given site has exceeded 20. ...
Context 3
... site numbers have been embold- ened if the number of specimens of the species from the given site has exceeded 20. Nephrotoma scurra (Meigen, 1818) 11, 12 Nigrotipula nigra (Linnaeus, 1758) 1, 12, 17 Prionocera pubescens Loew, 1844 3, 8, 9 Tanyptera (Tanyptera) atrata (Linnaeus, 1758) 3, 6, 8, 13 Tipula (Beringotipula) unca Wiedemann, 1817 17 Tipula (Lunatipula) ...
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Citations
... An ecologically flexible species, being ubiquitous provided there is a lack of shade and a presence of wet sediment needed for the larvae. Margins of rivers, streams, ponds and lakes, as well as gravel pits, ditches, marshes, coastal landslips, rich fens, seepages in meadows, moors and limestone screes are all suitable habitats (Dufour 1986, Autio et Salmela 2010, Stubbs 2021. Larva have been found at the bottom of small rivers, hygropetrica, sand and silt in the riparian zone of small rivulets and large rivers and in the littoral zone of lakes, mud on the slopes of lakes and rivers and in bogs, clay, and mosses on the banks of rivulets and land-improvement channels (Podėnienė 2003). ...
Tipula (Lunatipula) alpina Loew, 1873, Tipula (Lunatipula) helvola Loew, 1873 and Tipula (Savtshenkia) benesignata Mannheims, 1954 are reported from Poland for the first time in print. New locations for Tipula (Lunatipula) livida livida van der Wulp, 1859, Tipula (Lunatipula) peliostigma Schummel, 1833, Tipula (Pterelachisus) winthemi Lackschewitz, 1932 and Tipula (Yamatotipula) lateralis Meigen, 1804 -which are species omitted from, or listed as doubtful in the most recent checklist of Polish Tipulidae - are provided confirming the presence of these species in Poland. The distribution, biology and ecology of each species are briefly summarised.
... = Telmatoscopus albomaculatus (Wahlgren 1904) -Tonnoir 1922Barendrecht 1934;Enderlein 1937;Jung 1956;Nielsen 1961. = Panimerus albomaculatus (Wahlgren, 1904) -Vaillant 1972Ježek 1984;Wagner 1990Wagner , 1997Wagner , 2004Autio and Salmela 2010;Salmela et al. 2014 ...
... Distribution: Recorded from the Netherlands (Tonnoir 1922), Denmark (Nielsen 1961), Finland (Autio & Salmela 2010, Salmela et al. 2014, the Åland archipelago (Autio & Salmela 2010) and ...
... Distribution: Recorded from the Netherlands (Tonnoir 1922), Denmark (Nielsen 1961), Finland (Autio & Salmela 2010, Salmela et al. 2014, the Åland archipelago (Autio & Salmela 2010) and ...
A lectotype is designated for Pericoma albomaculata Wahlgren, 1904 and the species is illustrated and diagnosed. The female specimen is found to be conspecific with the female of Pericoma rivularis Berdén, 1954, both as associated in the original description and as subsequently associated using DNA barcodes. Pericoma rivularis Berdén, 1954 is consequently placed as a synonym of Pericoma albomaculata syn. n.. The species treated as Panimerus albomaculatus auctt. in the literature from 1922 onwards is found to belong to a distinct species of Panimerus, herein described as Panimerus halophilus Kvifte & Salmela sp. n.. The ecology of the latter species is reviewed; most records are from brackish water wetlands but the species also sporadically occurs along fresh water ponds or headwater streams.
... The highest point of Åland reaches 129 m a.s.l. (Autio & Salmela 2010). ...
Tree-ring chronologies provide high-resolution late Quaternary palaeoclimatic data. An important aim of tree-ring research is to extend the chronologies back in time, before the period covered by old living trees. Tree-ring material from historic buildings offers an opportunity to develop long chronologies that, in some regions, may cover the period of the past millennium. Such materials have remained in conditions favourable to preservation and can be used to date the construction timber by means of dendrochronology. Apart from dating, tree-ring data may prove valuable in interpreting past climatic conditions. Here we analyse the data of 111 Scots pine ( Pinus sylvestris L.) tree-ring series from the Åland Islands in south-western Finland. In so doing, we illustrate the variation of wetness and drought in the region over a historical time frame (1057–1826). Non-climatic trends were removed from these series using alternative types of detrending procedures. Tree-ring chronologies constructed from the same raw data but using different types of detrending methods agreed on annual to subcentennial scales. The chronologies produced using regional curve standardization (RCS), preferably combined with implementation of a signal-free approach, were comparable with previously published sedimentary and tree-ring evidence from the same region. While non-RCS methods are effective in removing non-climatic information from the chronology, they also resulted in removal of the long-term variation (low-frequency), which did, at least in our data, represent the palaeoclimatic signal common to different types of proxy records. These records, including our data and those of gridded reconstructions developed previously as the Old World Drought Atlas , agreed in indicating dry conditions over the pre-1250 period and around the mid-15 th century. The Åland chronology is characterized by notable fluctuations in the availability of tree-ring samples; the periods with low sample replication probably pinpoint years when large construction projects were suspended on these islands.
... Material Biology: A species of brackish or saline habitats (Salmela 2010), found in salty and coastal grazing marshes (Autio & Salmela 2010, Stubbs 2010. In Britain confined to high zone saltmarsh, most often markedly associated with Juncus gerardii. ...
... Biology: A species of all types of wet habitats such as springs, fens, marshland, carr around pools and lakes, well vegetated water margins, wet woodlands and marshy meadows (Autio & Salmela 2010, Boardman 2007, Cramer 1968, Kramer 2011, Lehmann & Reusch 2009, Noll 1985. Larvae aquatic to semi-aquatic, sometimes truly aquatic (Beyer 1932) but usually found in the more or less saturated organic mud along lakes and rivers (Cranston & Drake 2010, Kramer & Withers 2007, Przhiboro 2003, or between leaves of marshplants such as Iris, Phragmites andTypha (Brindle 1967, Coe 1941). ...
This paper presents forty species of limoniid craneflies as new to the Norwegian fauna, and include also an updated and annotated checklist of species occurring in Norway, Sweden, Finland, Denmark and Iceland. For Norway, distributional data are given according to Strand regions. Comments are given on some species with doubtful records from Norway.
... The small subset of aquatic Stratiomyidae recorded on many grazing marshes was discussed by Drake (2005). Autio and Salmela (2010) found high species-richness of Nematocera in four ditches when compared with other types of wetland on a large Finnish island. In a Belgian wetland complex, ditches dominated by reed supported a large proportion of the 55 species of Dolichopodidae recorded, including rare species, found in areas of high quality reed fen that the ditches linked, leaving only a small number found only in the fen but absent from the ditches (Decleer et al. 2015). ...
Adult Diptera were sampled by standardised sweep-netting along transects by ditches and in field centres on six visits from May to September 2012. Comparison of the fauna of field margins and centres was investigated using species-richness, rarity and assemblage composition. The fauna at field margins was markedly different to that in the field centres but the effect was largely restricted to the wetland component of the fauna. Wetland Diptera were more species-rich, more abundant and included more uncommon species at the margins than at the centres. They also formed a large proportion of the total dipteran fauna recorded on the grazing marsh. The numbers of species and the abundance of generalist Diptera and those associated with non-wetland habitats were almost unaffected by position in the fields. The main recommendation for management to enhance the fauna is to dig or restore more ditches rather than flood them.
... For differences between the taxonomy used herein and that used in previous works on Finnish Psychodidae (e.g. Hackman 1980, Salmela 2003, 2005, Salmela et al. 2007, Autio and Salmela 2010 see Kvifte et al. (2011). Two species, Pneumia nubila and Pneumia palustris, listed in the previous check-lists by Hackman (1980) and Wagner (2013) have not been confirmed through study of material. ...
A checklist of the families Chaoboridae, Dixidae, Thaumaleidae, Psychodidae and Ptychopteridae (Diptera) recorded from Finland is given. Four species, Dixella
dyari Garret, 1924 (Dixidae), Threticus
tridactilis (Kincaid, 1899), Panimerus
albifacies (Tonnoir, 1919) and Panimerus
przhiboroi Wagner, 2005 (Psychodidae) are reported for the first time from Finland.
... In order to map redlisted species, evaluate the effects of restoration or estimate species richness of flies, one must rely on samples. Finnish crane fly assemblages of open mires have been recently studied in large geographic areas, mainly by using Malaise traps (Salmela 2004(Salmela , 2008(Salmela , 2011Salmela and Ilmonen 2005;Autio and Salmela 2010) or sweep netting (Autio 2008). Adult insects have been collected due to the fact that immature stages of several species are unknown, hindering species level identification. ...
Species richness and abundance are central in biodiversity inventories and in measuring the structure of communities. Neglecting the assessment of sampling efficiency may lead to spurious estimates of species richness and conservation value. Our aim was to examine species richness, sampling effectiveness, species-abundance distribution (SAD) and rarity of a boreal, mire-dwelling crane fly (Diptera, Tipuloidea) assemblage in western Finland. 12 Malaise traps dispersed in 4 subplots and standardized sweep net samples were used to collect adult flies from the mire. A total of 23 species and 1,569 specimens were identified. In general all species richness estimators were highly correlated and indicated rather good sampling effort. Sample completeness, expressed as percentage of observed richness divided by estimated richness, was higher for mire-dwellers (mean 75 %) than for all species (mean 63 %). Crane fly assemblages of subplots and combined data fitted best with log-series SAD. Species spatial distribution was positively correlated with average abundance. In other words, the most abundant species occurred in the most of Malaise traps. Seven mire-dwelling species greatly outnumbered (94 % of the collected specimens) all other members in the assemblage, and only one observed species was rare by several definitions (local abundance, extent of occurrence in Finland and area of occupancy). Although the studied assemblage was characterized by commonness, five of the species have threatened status in Europe south of Finland. Separate species richness estimation of all species (vagrants and occasional species included) and focal species (here mire-dwellers) is supported if ecological information is available on the taxonomic group being studied.
... D. autumnalis has previously been recorded from The Åland Islands (Finland) (Salmela 2006, Autio & Salmela 2010 and is reported to be common in the lowlands on the British Islands (Disney 1999) and in The Netherlands (Krebs 1982). It seems to tolerate some salinity, viz. ...
Dixella autumnalis (Meigen, 1838) is recorded for the first time from Norway, from the island of Hvasser in Vestfold, southeastern Norway. A picture of the male hypopygium is given. Dixa nubilipennis Curtis, 1832 and Dixa submaculata Edwards, 1920 are deleted from the list as the records were based on misidentifications. Dixa maculata Meigen, 1818 is recorded for the second time from Norway, from southern Hedmark. An updated list of the Norwegian Dixidae is presented.
... Tipula wahlgreni är ny för Sverige och egentligen mest lik T. mutila Wahlgren, 1905 Erioptera nielseni is a rather common inhabitant of hydrologically pristine minerotrophic fens. It has been recorded in the north up to latitude 68°N in Finland (Salmela 2008, autio & Salmela 2010. ...
... This species has previously been taken in Denmark, Finland, The Netherlands and Sweden (Wagner 1990). Autio & Salmela (2010) suggested that the species is halophilous based on its abundance in Åland's saltmarshes. However, our records are all from a freshwater pond far inland. ...
A revised checklist with regional records of the Norwegian moth flies is given, listing 36 species. Clytocerus rivosus (Tonnoir, 1919), Ulomyia fuliginosa (Meigen, 1818), Pneumia borealis (Berden, 1954), Psychoda (Logima) satchelli Quate, 1955, Parajungiella longicornis (Tonnoir, 1919), Panimerus albomaculatus (Wahlgren, 1904) and Tonnoiriella nigricauda (Tonnoir, 1919) are recorded in Norway for the first time, while the occurences of Psychoda (Tinearia) alternata Say, 1824 and Psychoda (Apsycha) pusilla Tonnoir, 1922 are validated.
